Journal of Communications and Networks

  • 제18권3호
  • /
  • Pages.311-319
  • /
  • 2016
  • /
  • 1229-2370(pISSN)
  • /
  • 1976-5541(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지
DOI QR코드

DOI QR Code

Log-Average-SNR Ratio and Cooperative Spectrum Sensing

  • Yue, Dian-Wu (College of Information Science and Technology, Dalian Maritime University) ;
  • Lau, Francis C.M. (Department of Electronic and Information Engineering, The Hong Kong Polytechnic University) ;
  • Wang, Qian (Department of Electrical and Computer Systems Engineering, Monash University)
  • 투고 : 2014.09.17
  • 심사 : 2015.06.12
  • 발행 : 2016.06.30
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, we analyze the spectrum-sensing performance of a cooperative cognitive radio (CR) network consisting of a number of CR nodes and a fusion center (FC). We introduce the "log-average-SNR ratio" that relates the average SNR of the CR-node-FC link and that of the primary-user-CR-node link. Assuming that the FC utilizes the K-out-of-N rule as its decision rule, we derive exact expressions for the sensing gain and the coding gain - parameters used to characterize the CR network performance at the high SNR region. Based on these results, we determine ways to optimize the performance of the CR network.

키워드

과제정보

연구 과제 주관 기관 : Central Universities, Hangzhou Dianzi University

참고문헌

  1. S. Haykin, "Cognitive radio: Brain-empowered wireless communications," IEEE J. Sel. Areas Commun., vol. 23, pp. 201-220, Feb. 2005. https://doi.org/10.1109/JSAC.2004.839380
  2. I. F. Akyildiz, W.-Y. Lee, M. C. Vuran, and S. Mohanty, " Next generation/dynamic spectrum access/cognitive radio wireless networks: A survey," Comput. Netw., vol. 50, pp. 2127-2159, 2006. https://doi.org/10.1016/j.comnet.2006.05.001
  3. A. Ghasemi and E. S. Sousa, "Collaborative spectrum sensing for opportunistic access in fading environments," in Proc. IEEE DySPAN, Baltimore, USA, Nov. 2005, pp. 131-136.
  4. G. Ganesan and Y. G. Li, "Cooperative spectrum sensing in cognitive radio- Part I: Two user networks," IEEE Trans. Wireless Commun., vol. 6, pp. 2204-2213, June 2007. https://doi.org/10.1109/TWC.2007.05775
  5. J. Unnikrishnan and V. V. Veeravalli, "Cooperative sensing for primary detection in cognitive radio," IEEE J. Sel. Topics Signal Process., vol. 2, no. 1, pp. 18-27, Feb. 2008. https://doi.org/10.1109/JSTSP.2007.914880
  6. Z. Quan, S. Cui, and A. H. Sayed,"Optimal linear cooperation for spectrum sensing in cognitive radio networks," IEEE J. Sel. Topics Signal Process., vol. 2, no. 1, pp. 28-40, Feb. 2008. https://doi.org/10.1109/JSTSP.2007.914882
  7. W. Zhang and K. B. Letaief, "Cooperative spectrum sensing with transmit and relay diversity in cognitive radio networks," IEEE Trans. Wireless Commun., vol. 7, no. 12, pp. 4761-4766, Dec. 2008. https://doi.org/10.1109/T-WC.2008.060857
  8. K. B. Letaief and W. Zhang, "Cooperative commnications for cognitive radio networks," Proc. IEEE, vol. 97, no. 5, pp. 879-893, May 2009.
  9. Q. Wang and D.-W. Yue, "A general parameterization quantifying performance in energy detection," IEEE Signal Process. Lett., vol. 16, no. 8, pp. 699-702, Aug. 2009. https://doi.org/10.1109/LSP.2009.2022196
  10. D.-W. Yue, Q.Wang, and F. C.M. Lau. "Spectrum sensing gain analysis in cooperative cognitive radio networks," in Proc. WiCOM, Chengdu, China, Sept. 2010. pp. 1-5.
  11. D. Duan, L. Yang, and J. C. Principe, "Cooperative diversity of spectrum sensing for cognitive radio systems," IEEE Trans. Signal Process., vol. 58, no. 6, pp. 3218-3227, June 2010. https://doi.org/10.1109/TSP.2010.2044612
  12. H. Vu-Van and I. Koo, "Cooperative spectrum sensing with collaborative users using individual sensing credibility for cognitive radio network," IEEE Trans. Consum. Electron., vol. 57, no. 2, pp. 320-326, May 2011. https://doi.org/10.1109/TCE.2011.5955162
  13. Q. Wang, D.-W. Yue, and F. C. M. Lau. "Performance of cooperative spectrum sensing over fading channels with low signal-to-noise ratio,"IET Commun., vol. 6, no. 13, pp. 1988-1999, Dec. 2012. https://doi.org/10.1049/iet-com.2011.0452
  14. Y. Yilmaz, G. V. Moustakides, and X. Wang, "Cooperative sequential spectrum sensing based on level-triggered sampling," IEEE Trans. Signal Process., vol. 60, no. 9, pp.4509-4524, Sept. 2012. https://doi.org/10.1109/TSP.2012.2202657
  15. B. A. Bastami and E. Saberinia, "A practical multibit data combining strategy for cooperative spectrum sensing," IEEE Trans.Veh. Technol., vol. 62, no. 1, pp. 384-389, Jan. 2013. https://doi.org/10.1109/TVT.2012.2217160
  16. C. Jang and J. H. Lee, "Sum of discrete i.i.d. random variables and its application to cooperative spectrum sensing," IEEE Trans. Veh. Technol., vol. 62, no. 3, pp.1383-1389, Mar. 2013. https://doi.org/10.1109/TVT.2012.2228678
  17. A. R. Reibman and L. W. Nolte, "Optimal detection and performance of distributed sensor systems," IEEE Trans. Aerosp. Electron. Syst, vol. 23, no. 1, pp. 24-30, Jan. 1987.
  18. F. F. Digham, M.-S. Alouini, and M. K. Simon, "On the energy detection of unknown signals over fading channels," IEEE Trans. Commun., vol. 55, no. 1, pp. 21-24, Jan. 2007. https://doi.org/10.1109/TCOMM.2006.887483
  19. I. S. Gradshteyn and I. M. Ryzhik, Table of Integrals, Series and Products, 7th Edition, San Diego: CA, Academic Press, 2007.
  20. M. K. Simon and M.-S. Alouini, Digital Communication over Fading Channels, 2nd Editon, John Wiley & Sons, 2005.
  21. Z. Wang and G. B. Giannakis, "A simple and general parameterization quantifying performance in fading channels," IEEE Trans. Commun., vol. 51, no. 8, pp. 1389-1398, Aug. 2003. https://doi.org/10.1109/TCOMM.2003.815053
  22. L. Zheng and D. Tse, "Diversity and multiplexing: A fundamental tradeoff in multiple antenna channels," IEEE Trans. Information Theory, vol. 49, no. 5, pp. 1073-1096, May 2003. https://doi.org/10.1109/TIT.2003.810646
  23. F. A. Onat, Y. Fan, H. Yanikomeroglu, and J. Thompson, "Asymptotic BER analysis of threshold digital relaying in cooperative wireless networks," IEEE Trans. Wireless Commun., vol. 7, no. 12, pp. 4938-4947, Dec. 2008. https://doi.org/10.1109/TWC.2008.070537